"The authors study whether political campaign contributions influence agricultural protection in the United States in the manner suggested by the political economy model of Grossman and Helpman (1994). This is the first attempt to test this model using agricultural data. The authors test the...

"The author surveys the empirical literature on the political economy of agricultural protection. He uses a detailed data set of agricultural Political Action Committee (PAC) contributions over five U.S. congressional election cycles over the 1991-2000 period to investigate the relationship...

"Silva investigates the role played by domestic importers and foreign exporters in improving preferential access to the domestic market. To this end, the framework he uses extends the protection for sale analysis to explicitly model the role of domestic importers and foreign exporters in...